Ok so I've been trying to find out what this movie is for about 5 years now. I remember seeing it a long time ago, so it's likely pre-2000s. Or very early 2000s.

Things I remember:- A woman reads an email on a computer, and it says something about blackmail. She is in a work office or something, and is then chased by a creature (I remember it being dog-like). She is wearing heels and ends up falling into a giant fan of some sort.- A man sees an image of the creature/dog in the rear window of his car and I think he ends up crashing it? Or just gets really freaked out or something.- I remember there being a lot of lightning in it.

Hopefully someone can help me out here...been desperately looking for it for years and can't seem to find out what it is!